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If f(x,y) =log,(cos²(e* )+ sin(x + y) then f(x,y) is ây ôx A) – sin(x + y) B) 0 C) cos (x + y) cos(e")-1 D) - cos(x + y)

If f(x,y) =log,(cos²(e* )+ sin(x + y) then f(x,y) is ây ôx A) – sin(x + y) B) 0 C) cos (x + y) cos(e")-1 D) - cos(x + y)

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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If f(x, y) = log, (cos (e* ))+ sin(x + y) then f (x,y) is ây ôx A) – sin(x + y) - B) 0 C) cos (x + y) cos(e*)–1 cosle D) 1+ sin?(e** ) - cos(x + y)
Transcribed Image Text:If f(x, y) = log, (cos (e* ))+ sin(x + y) then f (x,y) is ây ôx A) – sin(x + y) - B) 0 C) cos (x + y) cos(e*)–1 cosle D) 1+ sin?(e** ) - cos(x + y)
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